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Home >> Subaru >> 2021 >> Outback Base >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Front Relay Control Module (Diagnostics) >> General Description >> Inspection >> Basic Inspection

Basic Inspection

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Before performing diagnosis, check the following items which might affect problems related to Front relay control module.

  1. Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Front Relay Control Module]. Check that the value is within the standard (9 - 16 V). Ref. to Front Relay Control Module (Diagnostics)>Data Monitor .
    • BATT Voltage (Control)
    • BATT Voltage (BACKUP)
    • IGN Voltage
  2. Check the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>BATTERY>INSPECTION . Ref. to STARTING/CHARGING SYSTEMS (H4DO)>BATTERY>INSPECTION .
  3. Check the relay and fuse condition.
  4. Check the connecting condition of harness and harness connector.
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